Genetics Selection Evolution

Table 2 Heritability, number of genotyped animals with DEBV and mean reliabilities of DEBV for studied traits

From: Accuracy of direct genomic breeding values for nationally evaluated traits in US Limousin and Simmental beef cattle

Trait		Limousin		Simmental
	h²	N	Reliability	N	Reliability¹
Birth weight	0.42	2185	0.65	2664	0.59
Calving ease direct	0.12	1687	0.61	2443	0.57
Calving ease maternal	0.13	1669	0.59	2441	0.43
Carcass weight	0.40	1459	0.67	2663	0.46
Docility	0.35	1225	0.54	-	-
Fat thickness	0.35	-	-	2463	0.59
Marbling	0.54	1447	0.61	2439	0.57
Rib eye muscle area	0.46	1449	0.62	2435	0.55
Scrotal circumference	0.43	1294	0.44	-	-
Shear force	0.40	-	-	1045	0.36
Stayability	0.21	757	0.50	563	0.66
Weaning weight direct	0.30	2150	0.53	2663	0.55
Weaning weight maternal	0.14	1480	0.55	2661	0.41
Yield grade	0.40	1446	0.62	2574	0.45
Yearling weight	0.29	1780	0.43	2663	0.56

Parent average contributions have been removed to calculate DEBV and their reliabilities. Heritabilities reported by North American Limousin Foundation and American Simmental Association.

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ISSN: 1297-9686

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